Approach to Evaluate the Abrasive Land Wear of High-Speed Bearings

State-of-the-art bearing materials, such as Pyrowear 675(P675) have been developed to meet the requirements of the next generation of gas turbine engines. P675 bearings have exhibited higher land wear compared to conventional M50 bearings under contaminated test conditions. Surface modification tech...

Full description

Saved in:
Bibliographic Details
Published in:Tribology letters 2010-08, Vol.39 (2), p.143-149
Main Authors: Rai, A. K, Trivedi, H. K, Bhattacharya, R. S, Klenke, C. J, Forster, N. H
Format: Article
Language:English
Subjects:
Abrasive wear
Abrasives
Bearing materials
Bearings
Chemistry and Materials Science
coatings
Contamination
Corrosion and Coatings
Flow rate
Flow velocity
Gas turbine engines
Gas turbines
Gas/Jet turbines
Land
Lubricants
Materials Science
Nanotechnology
Original Paper
Physical Chemistry
Protective coatings
Rolling element bearings
Surfaces and Interfaces
Theoretical and Applied Mechanics
Thin Films
Tribology
Viability
Wear
Wear resistance
Wear resistant
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:State-of-the-art bearing materials, such as Pyrowear 675(P675) have been developed to meet the requirements of the next generation of gas turbine engines. P675 bearings have exhibited higher land wear compared to conventional M50 bearings under contaminated test conditions. Surface modification techniques can be applied to enhance the wear resistance of bearing land surfaces. A coating has been developed to minimize abrasive wear of land surfaces. A new procedure using a 40 mm bearing test rig has been developed to effectively evaluate land wear under simulated contaminated condition. Test conditions including contamination concentration, test duration, test temperature and lubricant flow rate were optimized to obtain measureable wear on the land surfaces in a reasonable test time. Results obtained using M50 Nil, P675 and M50 bearings are presented to illustrate the viability of the test procedure.
ISSN:1023-8883
1573-2711
DOI:10.1007/s11249-010-9627-z